183880013 has 4 divisors (see below), whose sum is σ = 183911868. Its totient is φ = 183848160.

The previous prime is 183879977. The next prime is 183880033. The reversal of 183880013 is 310088381.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 180983209 + 2896804 = 13453^2 + 1702^2 .

It is a cyclic number.

It is not a de Polignac number, because 183880013 - 2¹⁴ = 183863629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (183880033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4568 + ... + 19713.

It is an arithmetic number, because the mean of its divisors is an integer number (45977967).

Almost surely, 2^183880013 is an apocalyptic number.

It is an amenable number.

183880013 is a deficient number, since it is larger than the sum of its proper divisors (31855).

183880013 is an equidigital number, since it uses as much as digits as its factorization.

183880013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31854.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 183880013 is about 13560.2364654898. The cubic root of 183880013 is about 568.6497360913.

The spelling of 183880013 in words is "one hundred eighty-three million, eight hundred eighty thousand, thirteen".